Vermyn N is the best. -> only 4 stars +
-Your opponent has to waste loads of pills if he doesn' want to take the 7 dmg, and then he hardly inflict dmg. -> great for bluff
-Can be played at lvl 3
Vermyn N. Willy can be shut down by stop opponent ability and fifty has too low power to justify his 5 stars
Of the three of them, I'd say that Vermyn N is the best; Willy "looks" good, but his combat performance left me rather unimpressed. And Fifty is, IMHO, inferior to Vermyn N, and he has 5 stars opposed to Vermyn's 4 at that!